Unlike classic steam boilers, the operating principle of steam generators is based on "low water volume" and "forced circulation" . Alba steam generators use a specially designed serpentine (tube bundle) structure to convert water into steam very quickly.
Here's the step-by-step process:
1. Feed Water Inlet
When the system starts, a high-pressure feed pump pushes water into the system. This water enters the serpentine arrangement , which is considered the heart of the generator and consists of interconnected spiral tubes .
2. Combustion and Heat Transfer
The burner creates a flame in the generator's combustion chamber. This heat is transferred to the water flowing through the coils. Thanks to the 3-pass system used in Alba generators , the combustion gases are circulated around the water three times before being expelled. This ensures maximum heat transfer to the water (high efficiency).
3. Rapid Phase Change (Evaporation)
While classic boilers require the heating of tons of water, in a generator, the water moves through a narrow pipe (serpentine). The liquid, entering as water from one end of the pipe, changes phase and turns into steam as it approaches the end of the pipe due to the intense heat it receives.
4. Steam-Water Separation and Dry Steam
The mixture exiting the serpentine coil reaches the steam separator at the generator's outlet. Here, water droplets are separated from the steam. As a result, dry, high-quality steam, required by the plant, is sent to the facility.
5. Automation and Control
The entire process is monitored in real-time by the PLC control panel.
- Pressure Control: The burner switches to modulation mode or stops when the desired pressure is reached.
- Temperature Control: The outlet temperature is continuously measured to ensure system safety.
- Water Level Control: The pump automatically adjusts the water balance within the coil.
Key Differences Between a Steam Generator and a Boiler
| Feature | Steam Generator (Alba) | Classic Steam Boiler |
| Bukhara Departure Time | 3 - 5 Minutes | 45 - 60 Minutes |
| Water Volume | Very Low (Safe) | Very High (Risk) |
| Risk of Explosion | Almost none | Existing (due to high water pressure) |
| Area of Use | Compact, takes up little space. | It requires a large area. |
| Yield | Higher because it responds quickly. | Energy loss is high during the heating process. |
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